SPEED LIMITER SYSTEM Speed Limiter System does not Operate

DESCRIPTION

When the speed limiter is turned on using the speed limiter switch, the ECM illuminates the speed limiter indicator and activates the speed limiter system. Each function of the speed limiter system can be activated by operating the cruise control switch. When the cruise control system is operating, the speed limiter system will not operate.

WIRING DIAGRAM

A01TDKRE02
for 1NR-FE and 1ZR-FAE
*a Speed Limiter Switch
*b Steering Pad Switch Assembly
*c Spiral Cable Sub-assembly
A01TDKRE04
for 1AD-FTV
*a Speed Limiter Switch
*b Steering Pad Switch Assembly
*c Spiral Cable Sub-assembly

PROCEDURE


  1. CHECK CRUISE CONTROL SYSTEM


    1. Turn the ignition switch ON.

    2. Turn the cruise control on using the cruise control switch.

    3. Check the operation of each function by operating the cruise control switch.

      Click here

      OK
      Each function of the cruise control system operates normally.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO CRUISE CONTROL SYSTEM Click here

    OK

  2. READ VALUE USING GTS (ASL MAIN SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus : Powertrain / Cruise Control / Data List / ASL Main Switch.

    5. In accordance with the display on the tester, read the Data List.


      Powertrain > Cruise Control > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      ASL Main Switch Speed limiter switch signal ON or OFF

      ON: Speed limiter switch on

      OFF: Speed limiter switch off

      		 -

      Powertrain > Cruise Control > Data List
      Tester Display
      ASL Main Switch
      OK
      When the switch is operated, the display changes as shown above.
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND) Click here

    OK

  3. CHECK FOR DTC (CRUISE CONTROL SYSTEM)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Check for DTCs.

      Click here


      Powertrain > Cruise Control > Trouble Codes
      Result
      Display (DTC output) Proceed to
      DTC P0500 and/or DTC P0503 are output A
      DTC P0500 and DTC P0503 are not output (for 1NR-FE) B
      DTC P0500 and DTC P0503 are not output (for 1ZR-FAE) C
      DTC P0500 and DTC P0503 are not output (for 1AD-FTV) D

    A

    GO TO CRUISE CONTROL SYSTEM Click here

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    D

    REPLACE ECM Click here

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)


    1. Disconnect the spiral cable sub-assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      E6-2 (ECC) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)


    1. Disconnect the ECM connector.

    2. Disconnect the spiral cable sub-assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for 1NR-FE and 1ZR-FAE
      Tester Connection Condition Specified Condition
      A50-40 (ASLM) - E6-12 (ASL) Always Below 1 Ω
      A50-40 (ASLM) or E6-12 (ASL) - Body ground Always 10 kΩ or higher
      for 1AD-FTV
      Tester Connection Condition Specified Condition
      A118-24 (ASLM) - E6-12 (ASL) Always Below 1 Ω
      A118-24 (ASLM) or E6-12 (ASL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. Inspect the spiral cable sub-assembly.

      w/ VSC: Click here

      w/o VSC: Click here

      Result
      Result Proceed to
      OK A
      NG (w/ VSC) B
      NG (w/o VSC) C

    B

    REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Click here

    C

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    A

  7. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Inspect the steering pad switch assembly.

      Click here

      Result
      Result Proceed to
      OK (for 1NR-FE) A
      OK (for 1ZR-FAE) B
      OK (for 1AD-FTV) C
      NG D

    A

    REPLACE ECM Click here

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    D

    REPLACE STEERING PAD SWITCH Click here